From owner-cvs-all Mon Sep 20 2:16:53 1999 Delivered-To: cvs-all@freebsd.org Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.40.131]) by hub.freebsd.org (Postfix) with ESMTP id EE50414DB7 for ; Mon, 20 Sep 1999 02:16:50 -0700 (PDT) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.9.3/8.9.2) with ESMTP id LAA21853; Mon, 20 Sep 1999 11:16:05 +0200 (CEST) (envelope-from phk@critter.freebsd.dk) To: "David Schwartz" Cc: "Mike Smith" , cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/conf files.i386 src/sys/i386/i386 mp_clock.c In-reply-to: Your message of "Mon, 20 Sep 1999 02:08:44 PDT." <000001bf0347$bd39b3e0$021d85d1@youwant.to> Date: Mon, 20 Sep 1999 11:16:05 +0200 Message-ID: <21851.937818965@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk In message <000001bf0347$bd39b3e0$021d85d1@youwant.to>, "David Schwartz" writes > If it's not too difficult, can you do both? Use the most reliable source >(PIIX) as your base time reference, and then use the TSC to 'add on a bit' >to make it a bit more precise. This way, even if the TSC is somehow >corrupted, your worst-case accuracy will be what your best case with just >the PIIX. The problem is that the needed code complexity soaks up any advantage from doing so... -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." FreeBSD -- It will take a long time before progress goes too far! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message